City report · Selangor, Malaysia
Kampung Baru Subang Air quality today
Air quality in Kampung Baru Subang currently reads AQI 66 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 66
Moderate
- PM2.5, fine particles (µg/m³)
- 16.9
- tree cover
- 25.3%
- trees in this area
- 79.4K
- more trees needed
- 14.8K
Measured across a 2 km radius around Kampung Melayu Subang, 40150 Shah Alam, Selangor, Malaysia (12.57 km²), from a satellite image of Aug 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Kampung Baru Subang · AQI 66 (Moderate)
Kampung Baru Subang's tree count comes to 79,403 trees across 12.56 km² of land, 5 points below the 30% tree-cover level considered healthy for this area, so roughly 14,751 more trees would close the gap.
Air quality detail
Air quality in Kampung Baru Subang today: AQI 66, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Shah Alam, Selangor, Malaysia, 5.6 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
16.9
PM10
21.6
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Malaysia Department of Environment (DOE); Air Polluant Index Management System
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Kampung Baru Subang's daily AQI at 88 on average, from 83 on Nov 7 to an hourly peak of 165 on Nov 4.
This is the US EPA AQI. How it differs from Malaysia's API (IPU) · The full guide
Where Kampung Baru Subang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Kampung Baru Subang: Below target
25.3% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
79,403
Target trees
94,154
More trees needed
14,751
CO₂ if planted / yr
324.5 t
Deforestation · 2001–2025
How much forest has Kampung Baru Subang lost?
Since 2001, the area within 10 km of Kampung Baru Subang has lost about 6,890 hectares of forest (about 9,600 football pitches): 52% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 6,890 haabout 9,600 football pitches
- Share of its forest
- 52%of what there was in 2000
- Cleared for good
- 6,880 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 123 hectares a year in 2021–2025, down from 265 hectares a year in 2016–2020. The worst year was 2004, when about 800 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 463 ha | under 1 ha | 463 ha |
| 2002 | 510 ha | under 1 ha | 510 ha |
| 2003 | 166 ha | 1 ha | 167 ha |
| 2004 | 800 ha | under 1 ha | 800 ha |
| 2005 | 418 ha | under 1 ha | 418 ha |
| 2006 | 348 ha | under 1 ha | 348 ha |
| 2007 | 407 ha | under 1 ha | 407 ha |
| 2008 | 145 ha | under 1 ha | 145 ha |
| 2009 | 323 ha | under 1 ha | 323 ha |
| 2010 | 317 ha | under 1 ha | 317 ha |
| 2011 | 109 ha | under 1 ha | 109 ha |
| 2012 | 518 ha | under 1 ha | 518 ha |
| 2013 | 49 ha | under 1 ha | 49 ha |
| 2014 | 269 ha | under 1 ha | 269 ha |
| 2015 | 105 ha | under 1 ha | 105 ha |
| 2016 | 418 ha | under 1 ha | 418 ha |
| 2017 | 381 ha | under 1 ha | 381 ha |
| 2018 | 185 ha | under 1 ha | 185 ha |
| 2019 | 258 ha | 2 ha | 260 ha |
| 2020 | 82 ha | under 1 ha | 82 ha |
| 2021 | 91 ha | under 1 ha | 91 ha |
| 2022 | 45 ha | under 1 ha | 46 ha |
| 2023 | 165 ha | under 1 ha | 165 ha |
| 2024 | 149 ha | under 1 ha | 149 ha |
| 2025 | 163 ha | under 1 ha | 163 ha |
What is causing deforestation around Kampung Baru Subang?
- Towns and roadscleared for good82% · 5,640 ha
- Mining and energycleared for good12% · 855 ha
- Farms, pasture and plantationscleared for good5.6% · 389 ha
Also: logging, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 16,000 ha
- Forest in 2020
- 12,300 ha
- Overall change
- −3,740 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Kampung Baru Subang shrank from about 16,000 hectares to 12,300 hectares, a net loss of about 3,740 hectares (−23%). New forest grew on about 1,740 hectares, but 5,480 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Kampung Baru Subang
Same 2 km radius, same index — so they compare directly.
- Klang16.1 km
Malaysia
- Tree cover
- 23%
- Air quality
- 86
- Kapar16.8 km
Malaysia
- Tree cover
- 55%
- Air quality
- 68
- Kuala Lumpur17.0 km
Malaysia
- Tree cover
- 44%
- Air quality
- 75
- Selayang Baru Utara18.9 km
Malaysia
- Tree cover
- 29%
- Air quality
- 113
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Frequently asked
Questions about Kampung Baru Subang
What is the air quality (AQI) in Kampung Baru Subang right now?
The latest reading for Kampung Baru Subang shows an AQI of 66 (Moderate), measured Nov 11, 23:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Shah Alam, Selangor, Malaysia, 5.6 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Kampung Baru Subang today?
At AQI 66 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Kampung Baru Subang been like this week?
Over the last 7 days, the CAMS air-quality model put Kampung Baru Subang's daily AQI at 88 on average, from 83 on Nov 7 to an hourly peak of 165 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
Is Kampung Baru Subang's AQI the same as Malaysia's API (IPU)?
No. Airleaf shows the US EPA Air Quality Index (AQI), the scale used by IQAir and most air-quality apps. Malaysia's Department of Environment (Jabatan Alam Sekitar) publishes its own Air Pollutant Index, the API or Indeks Pencemar Udara (IPU), every hour for each of its monitoring stations on APIMS (apims.doe.gov.my). Both scales call 0–50 good and 51–100 moderate; above that the IPU runs 101–200 unhealthy, 201–300 very unhealthy and over 300 hazardous. The two use different breakpoints and averaging times, so the numbers for the same hour often differ. For the official IPU reading, check the nearest station on APIMS.
How much forest has the area around Kampung Baru Subang lost since 2001?
Since 2001, the area within 10 km of Kampung Baru Subang has lost about 6,890 hectares of forest (about 9,600 football pitches): 52% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss is slowing down: about 123 hectares a year in 2021–2025, down from 265 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Kampung Baru Subang shrank from about 16,000 hectares to 12,300 hectares, a net loss of about 3,740 hectares (−23%). New forest grew on about 1,740 hectares, but 5,480 hectares were lost.
What is the tree count in Kampung Baru Subang?
Kampung Baru Subang has an estimated 79,403 trees across the 12.56 km² of land measured — 25.3% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Kampung Baru Subang need?
Kampung Baru Subang needs roughly 14,751 more trees to close a 5-point shortfall against its 30% tree-cover target — about 324.5 t of extra CO₂ absorbed per year once grown.
How are Kampung Baru Subang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Kampung Melayu Subang, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Kampung Melayu Subang; the tree count is an estimate derived from that cover.
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